As of Q3'25, ONTO's ROS (Return on Sales) stands at 14.66%. This represents a notable decline from the previous quarter, Q2'25, where ROS was 15.67%, and is significantly lower than the recent peak of 26.88% observed in Q1'25. Analyzing the period from Q1'23 to Q3'25, the ROS trend has been volatile, with several sharp increases and declines. After a dip to 14.61% in Q2'23, ROS rebounded to 18.68% in Q3'23, followed by fluctuations and a strong upward movement peaking at 26.88% in Q1'25. However, this peak was short-lived, as subsequent quarters saw a pronounced drop, indicating instability in profitability over the observed timeframe.